If you are offline, it will work for a few days that’s right. If you are online, and the rights service is failing, it will revoke your key.
The trouble is, you would have to know about the outage first and go offline before attempting to play.
> If you are online, and the rights service is failing, it will revoke your key.
Do you have evidence of this? I've played Xbox for 25 years and never seen this.
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